Combined fan and pump for self-propelled vehicles.



l L. iwf-WER L E. A. BYE. COMBINED FAN AND PUMP FOB SELF PROPELLED VEHCLESL APPUCATI'ON HLED FES. I9, i9.

Pali-@n Nw. 23, i916,

i terial than heretofore.

andState of Minnesota, `have and useful Improvement in fand Pumps for .Self-Pro- A Boff which' the following is passation objectief this invention is to unify ythe'- cbnstrliction bf farm tractors and self j propelled "v"f`eh'icle`s,f1 this' invention pertainl*ing-"moreparticularly to the unification of the, fan .andE nwhich are commonly `emv'ployedf"im connection with ytractors which are. driven by. gas power.

The.. advantageous results obtained by this inventionare primarily, simplicity of con struction, reduction of cost and the production of mechanism which is less liable to disorder than in prior devices.

Another advantage attained is the strengthening of the parts with less mayInV the accompanying' drawing forming part of this specification, lFigure 1 is a side elevation of a detail of a gas tractor, illustrating our invention, parts of` the structure being broken away to more clearly expose the mechanism; Fig. 2 is a front velevationv of part of the structure illustrated in Fig.l 1, and Fig. 3 is a central vertical section through the structure illustrated in Fig. 2.

In the drawing 2 and '3 indicate 4a pair of longitudinal channel members forming part of the frame or body of a tractor on which is secured the yusual with water or other cooling medium through the circulating pipes 5 and 6, said radiator being arranged on the front end of the body. Distanced from the front end of the body is the usual gas engine 7 or other prime mover having 'a crank shaft 8 eX- tending longitudinally in a forward .direction of the body from the crank casing 9. Secured to the side members 2 and 3 ofthe body, such as by means of bolts o10' is a stand 11, the lateral ends of which rest upon the side members and the central or body' portion of which projectsV upwardly midway of said ends and forms a socket 12 in which a fan shaft 13 is bolted and 'forms' a-journal support for the fan 14. This fanis arranged ediatelv back of the radi- "by a cover 16 heldin fluid tight 'chamberby the rad? ,tor 4 supplied 11 may be Tron or ivii ros Patentetl-Novi,11.91%. 79,300;

atcr, so that as it revolves, it propels air through the radiator for cooling purposes in the usual manner.

The body ofthe stand is formed with a circular pump chamber 15, which is closed y secured thereto such as by bolts rl`he pump chamber contains'the impelling element 18, which is mounted upon a `shaft 19, said shaft being coupled at 2O to the end of and in alinement with' the crank shaft 8 to form a revoluble eX'- `tension thereof. The shaft member 19 is connection with the pump glands 21 and 22 respectively on ythe 'body of the pump Chambon and on the cover element 16. The forwardly projecting end of the shaft element 19 adjacent the gland 21 carries a belt pulley 23 alined with a corresponding belt pulley 24 integral with the fan 14 and journaled upon the fan shaft 13. A vbelt 25 passing over the pulleys 23 and 2l serves to transmit motion from the shaft 19 to the fan driving the latter, at suitable speed for cooling purposes.

rlhebody of the stand containing the .pump chamber 15 is formed with an outjacket compartments in the engine casing. rlhe cover 16 is also formed with an'inlet duct 27, which is connected'with the pipe 5 leading forwardly to the radiator 4l. rln operation as the shaft 19 is revolved by the crank shaft of the engine, the impel'ling element of the pumpv and the fan are revolved simultaneously at suitable speed. Freely hung from the shaft 13 is a link 28 carrying an idle pulley 29, the latter bearing by its periphery upon the belt 25 and holding the latter suiliciently tight to engage the pulleys and prevent slipping. The entire apparatus being composed lof a or other cooling medium through the usual pense in construction and liability of the parts getting out of alinement. -"lhe stand of skeleton form and of angle construction for the purpose of saving ma'- terial withoutzimpairing strength.

ln accordance with the lpatent statutes,

we have described the principles of operation of our invention together with the apparatus which we now consider'to represent th desire to h struction L,shown is o -that the invention ca other means and those above set` the following claim Having describe claim as new and ters Patent is:

1. Apparatus o prising, in combination, frame, anengine having an extending cra ator mounted upon said fram cured to said fr thereon adjacent sai with a pump pelling chamber,` element journa and coupled to connection between t impelling eleme chamber being let ducts for the 2. Apparatus o pplied to uses our invention what we upon said-support to impel a current of air desire to protect by Letthrough said radiator, an impelling element ame having a e besternbodiment thereof, but we prising, in combination, an engine having ave it understood that the conan extending crank shaft,4 a. radiator, a nly illustrative, n and' frame upon which said parts are mounted, n be Carrie other than strength of Said frame having a body rth within the scope of formed with a pump chamber vand an `upby a stand secured, to and reinforcing the wardly extending support, a fan journale journaled in said pump chamber and f the class set forth, comcoupled to said shaft to be driven therebyT a vehicle body and a -drive connection between said fan upon said frame and said impelling element.

nk shaft, a radi'- 3. In apparatus of the class set forth, a e, a stand se-v stand having laterally extending arms, a f a'n journaled centrally disposed upwardly projecting supd radiator and formed port and a pump chamber, al drive shaft er in its body, an imextending through sald chamber and jourt arranged in said pump naled upon said support, an impelling elea shaft carrying led in the bo saidy impelling ment mounted upon said shaft, a fan jourdy of said stand naled upon said support, a drive connecsaid crank shaft and a drive tion between said Shaft and said fan and he shaft carrying said means for revolving said shaft. d said fan, said pump In testimony whereof, we have signed our formed with inlet and outnames to this specification.

purposes specified. l f the class set forth, com- Louis MAYER. Enwnv A. BYE. 

